Synthesis method of CaO with enhanced carbon capture performance

DOI: 10.1038/s41467-018-04794-5

https://www.nature.com/articles/s41467-018-04794-5

“Previous studies aiming at developing stabilized, CaO-based CO₂ sorbents have utilized various synthesis methods, including wet-mixing^30,31, precipitation³², co-precipitation³³, sol–gel³⁴, flame spray pyrolysis³⁵, and re-crystallization²². Yet, the majority of these works have fallen short of ensuring a structure that meets all of the essential characteristics outlined above. An additional concern is that some works that have reported an attractive CO₂ uptake, have tested the materials under unrealistic operating conditions (e.g., regeneration in pure N₂ at temperatures <900 °C)³⁶, or are based on synthesis protocols that rely on environmentally harmful precursors^17,37,38,39.”